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Submitted by admin on Tue, 08/26/2008 - 15:40

Clinical Signs:

Dyspnea, hock sitting position

Clinical description:

This image was taken 3 days post experimental inoculation with highly pathogenic avian influenza. This bird is open-mouth breathing, a sign of dyspnea. Although respiratory signs are generally less pronounced in HPNAI versus LPNAI, signs will vary with the extent of tracheal involvement and mucous accumulation. Birds that survive 3-7 days, as seen here, may also exhibit nervous sings. This bird is unable to stand and is demonstrating an abnormal posture of standing on its hocks.

Record number:

20798

Case number:

5048

Age:

16 weeks

Breed:

White Leghorn SPF

Clinical form:

Acute

Infection type:

Experimental

History:

The photograph was taken 3 days post inoculation. The bird was experimentally inoculated with highly pathogenic avian influenza virus on 3/2/08 at Plum Island Animal Disease Center. The inoculation was performed in the caudal thoracic air sac with strain A/CK/PA/469/3-84/H5N2, using 0.25ml.